For ignition and general purpose measuring Tool measures 3.25″ long x 1/2″ wide Made of tempered 1095 spring steel The sizes, both decimal and metric equivalent, are permanently etched on each blade Contains quantity 26 of 3″ x 1/2″ blades with thicknesses: .0015, .002, .0025, .003, .004, .005, .006, .007, .008, .009, .010, .011, .012, .013, .014, .015, .016, .017, .018, .019, .020, .021, .022, .023, .024, .025 Made in the U.S.A.